US4217223AExpiredUtility
Gel permeation chromatograph system
Est. expiryFeb 1, 1998(expired)· nominal 20-yr term from priority
G01N 30/466G01N 30/468G01N 30/02
48
PatentIndex Score
9
Cited by
3
References
2
Claims
Abstract
A gel permeation chromatograph system comprises a series of a solvent tank, a line filter and a distribution block; a pair of series of constant flow feeding pumps and sample injecting devices which are connected to the distribution block under dividing into a sample side passage and a reference side passage; a pair of analysis columns in each passage; and a detector connected to the outlet side passages of said analysis columns.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1. A gel permeation chromatograph system which comprises: a series of a solvent tank, a line filter and a distribution block; a pair of series of constant flow feeding pumps and sample injecting devices which are connected in parallel to said distribution block for dividing into a sample side passage and a reference side passage; a pair of analysis columns adapted to contain high density gel in each passage; and a detector connected to the outlet side passages of said analysis columns.
2. A gel permeation chromatograph system according to claim 1 wherein said columns are identical so that said system may be used as a column switching type gel permeation chromatograph system.Cited by (0)
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